• © Office Tower IZD GmbH
  • © Office Tower IZD GmbH
  • © Office Tower IZD GmbH

IZD Tower


The IZD Tower is an office building located in Vienna, with 41 above-ground floors and belongs with a total height of 140 meters to the highest buildings in Austria.

Alpha was commissioned to find ways to stabilize and to predict the maintenance costs over the next 10-15 years, to assure the operational safety of the building and to increase the efficiency of the operational and energy costs.

To achieve this, a detailed analysis of the building was carried out. Furthermore, the cooling supply contracting was re-tendered.




IZD Tower Vienna   IZD Tower Vienna   IZD Tower Vienna



Client Office Tower IZD GmbH
Services Energy Consulting
Energy Modeling
Consulting Building Ecology
Use Office and Administration
GFA 63.520 m²
Realization 2012-2013
  • Identification of energy saving measures
  • Implementation of concrete measures (eg including meter and measuring conept, solar protection and individual room control)
  • Operating and additional cost optimization
  • Successful award of a cooling supply contracting
  • Reduce maintenance risk

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